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store the events in a database

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tibbi
2016-07-04 14:22:18 +02:00
parent 6a014a99df
commit 6098b54712
9 changed files with 116 additions and 63 deletions
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83
app/src/main/java/com/simplemobiletools/calendar/DBHelper.java Normal file
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package com.simplemobiletools.calendar;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import com.simplemobiletools.calendar.models.Event;
import java.util.ArrayList;
import java.util.List;
public class DBHelper extends SQLiteOpenHelper {
private static SQLiteDatabase mDb;
private static String[] mProjection;
private static final String DB_NAME = "events.db";
private static final int DB_VERSION = 1;
private static final String TABLE_NAME = "events";
private static final String COL_ID = "id";
private static final String COL_START_TS = "start_ts";
private static final String COL_END_TS = "end_ts";
private static final String COL_TITLE = "title";
private static final String COL_DESCRIPTION = "description";
public static DBHelper newInstance(Context context) {
return new DBHelper(context);
}
public DBHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
mDb = getWritableDatabase();
mProjection = new String[]{COL_ID, COL_START_TS, COL_END_TS, COL_TITLE, COL_DESCRIPTION};
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TABLE_NAME + " (" +
COL_ID + " INTEGER PRIMARY KEY, " +
COL_START_TS + " INTEGER," +
COL_END_TS + " INTEGER," +
COL_TITLE + " TEXT," +
COL_DESCRIPTION + " TEXT" +
")");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
public void insert(Event event) {
final ContentValues values = new ContentValues();
values.put(COL_START_TS, event.getStartTS());
values.put(COL_END_TS, event.getEndTS());
values.put(COL_TITLE, event.getTitle());
values.put(COL_DESCRIPTION, event.getDescription());
mDb.insert(TABLE_NAME, null, values);
}
public List<Event> getEvents(int fromTS, int toTS) {
List<Event> events = new ArrayList<>();
final String selection = COL_START_TS + " >= ? AND " + COL_START_TS + " <= ?";
final String[] selectionArgs = {String.valueOf(fromTS), String.valueOf(toTS)};
final Cursor cursor = mDb.query(TABLE_NAME, mProjection, selection, selectionArgs, null, null, null);
if (cursor != null) {
if (cursor.moveToFirst()) {
do {
final int id = cursor.getInt(cursor.getColumnIndex(COL_ID));
final int startTS = cursor.getInt(cursor.getColumnIndex(COL_START_TS));
final int endTS = cursor.getInt(cursor.getColumnIndex(COL_END_TS));
final String title = cursor.getString(cursor.getColumnIndex(COL_TITLE));
final String description = cursor.getString(cursor.getColumnIndex(COL_DESCRIPTION));
events.add(new Event(id, startTS, endTS, title, description));
} while (cursor.moveToNext());
}
cursor.close();
}
return events;
}
}